Design, Analysis, and Implementation of a Transformer-less Step-up Converter with Continuous Input Current and High Voltage Gain Ratio

Asgarniya, Reza; Shamouei-Milan, Milad; Marangalu, Milad Ghavipanjeh; Islam, Md. Rabiul; Afjei, E.

doi:10.1109/globconht56829.2023.10087802

Cited by 1 publication

(1 citation statement)

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“…The use of RES is increasing to provide a green future. Power electronic converters are needed to exploit the energy produced by PV systems and use them in industry and residential sectors [1][2][3]. Multi-level inverters are promising solutions to enhance the performance of electric vehicles (EVs), PV systems, and other power electronic devices in medium-and high-power applications due to many advantages like requiring small size filter, low total harmonic distortion (THD), high efficiency, etc.…”

Section: Introductionmentioning

confidence: 99%

A New High Step-Up SC-Based Grid-Tied Inverter With Limited Charging Spike for RES Applications

Marangalu,

Kurdkandi,

Monfared

et al. 2024

IEEE Open J. Power Electron.

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Switched capacitor multilevel inverter topologies are attractive among industrial power electronics researchers due to their applicability in sustainable energy systems such as renewable energy source (RES) applications. In this paper, a new switched capacitor (SC)-based grid-tied seven-level inverter is proposed for renewable energy sources (RES) applications. The proposed inverter can generate a seven-level output voltage waveform with voltage boosting ability and a gain factor of 3. Also, the proposed topology can provide the self voltage balancing for capacitors. The most important challenge of the SC-based topologies, i.e., the capacitor charging spike current, is solved by applying a soft charging circuit in the charging loop of the capacitors. The soft charging circuit consists of an inductor and a power diode in the capacitor charging path. Using a small size inductor in the soft charging circuit, the proposed inverter can limit the input current spikes. Comprehensive experiment results and comparisons are presented to verify the accurate performance of the proposed inverter.

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Section: Introductionmentioning

confidence: 99%